Wall Street's investment banking recovery is gathering momentum, driven by a rebound in IPOs, M&A deals and corporate debt issuance. The six largest U.S. banks reported an average 45% year-on-year jump in investment banking fees in the second quarter, signalling a broad-based revival after years of weak dealmaking.

Wall Street banks posted strong second-quarter earnings, boosted by robust merger-and-acquisition advisory fees and a surge in trading revenue, though...

Wall Street's investment banking recovery is gathering momentum, driven by a rebound in IPOs, M&A deals and corporate debt issuance. The six largest U.S. banks reported an average…